Wrench



N0. 6|8,506.. Patented lan. 3|, |899.

J.. H. HANSUN.

W R E N C H (Application led Apr. 21, 1897 lll nl W/TNESSES /N VEN 70H UNTTED STATES PATENT Trios.

JOSEPH II. HANSON, OF CRYSTAL FALLS, MICHIGAN, ASSIGNOR OF'THREE- FOURTHS TO SHERMAN T. HANDY AND A. M. DARLING, OF SAME PLACE, AND D. R. BROIVN, OF MILLS CENTRE, WISCONSIN.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 618,506, dated January 31 1899.

Application filed April 21, 1897. Serial No. 633,209. (No model.)

To all whom t may concern,.-

Be it known that I, JOSEPH H. HANSON, of Crystal Falls, in the county of Iron and State of Michigan, have invented certain new and useful Improvements in Vrenches, of which the following is a specification.

This invention is in the nature of an improved monkey or pipe wrench; and it primarily has for its object to provide a wrench 1o of this character of a very simple and inexpensive construction which can be easily manipulated and which can be readily adjusted without the use of screws or clamp-bolts.

In its subordinate features my invention r 5 comprehends the peculiar combination and novel arrangement of parts, such as will be first described in detail and then be specifically pointed out in the appended claims, reference being had to the accompanying drawzo ings, in which- Figure l illustrates inyimprovements as applied to a combined monkey and pipe wrench. Fig.'2 illustrates its application to a chain or tongue wrench, the lock mechanism being of aslightly-modilied construction. Fig. 3 illustrates a side elevation of a portion of the monkey-wrench equipped with my improvements. Figs. i and 5 are detail views of parts of my improved mechanism. Fig. 6 illus- 3o trates a further modification of my improved wrench lock device, and Fig. 7 is a horizontal section taken on the line7 7 of Fig. 6.

Referring to the accompanying drawings,

in which like letters indicate like parts in all 3 5 the figures, A indicates the shank of the combined monkey and pipe wrench, which has the usual serrated or toothed edge a and the iixed top jaw B, having a toothed pipe-engaging member Z1 anda flat or nut-engaging 4o member h'.

C indicates the sliding jaw of the wrench, provided at the upper end with a jaw portion proper, c, which forms the mate to the member h and which carries at the opposite edge a toothed dog c2 for engaging the pipe, as shown. The sliding jaw portion C has an elongated slotway D extending its full length, in which is held a lock-bar E, provided-at one edge with arack or serrated face e, which is adapted to be moved into engagement with 5o the toothed or serrated edge a of the shank A, as clearly shown in Fig. 1, the opposite edge of such bar E in its simplest form being provided with a single semicircular recess e2, for a purpose presently explained. The sliding jaw portion C is also formed with an extension C3, having a vert-ical aperture c3 to receive a turn-bolt F, which is held from longitudinal movement by the shoulder F of the handle member f at one end and spring- 6o washers f2 and key f3 at the other end.

The bolt f has a semicircular recess concaved seat f5, whichwhen brought in line with the opening g in the division member G, separating the aperture c and the slotway D, forms, in connection with the said opening g, a pocket to receive the lock-ball H, which when the ball F is turned to the position shown -in Fig. l seats in the opening g and the recess e2 in the lock-bar E and holds such 7obar in a locked engagement with the toothed shank A.

So far as described it will be readily understood that by turning the bolt F to bring the recess f5 in line with opening g and pulling 75 the lock-bar E (which has a suitable iinger portion E2 at the lower end) outward the slide 'portion C of the wrench will be held for free movement on the shank A.

When used in connection with the chain- 8o tongs, the lock-bar E is preferably madewith two recesses e2 and the turn-'bolt F with two recesses f5, two balls H being used in this arrangement, as clearly shown in Fig. 2.

In Figs. 6 and 7 is shown afurther modii- 85 cation of my ball lock mechanism as applied to wrenches having a laterally-movable sliding jaw. In this construction the slide-jaw has rack-faces with which the toothed slot-bar E engages and is held locked thereto so long 9o as the bolt and balls are set, as shown in Fig. 7, it being manifest that as the bar E has free back play when the ball is turned with its concaved recess f5 to receive the ball said bar E can be readily moved out of engagement with the toothed jaw.

From theforegoing description, taken in connection with the accompanying drawings,

it is thughtthe advantages and complete operation of my improvement Will be readily understood Without further description.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is"

l. An improved wrench having a lock mechanism, comprising a shank having a toothed edge; a lock-bar having a toothed portion adapted to be moved into engagement with the toothed edge of the shank, said bar being movable to disengage the shank and having one or more recesses or depressions; a lock ball or balls adapted to seat in such recesses and a turn-bolt for holding such balls in a locked engagement with the shank member, substantially as shown and for the purposes described.

2. In an improved Wrench,the combination With the casing having a slotway, a rotary lock-bolt held in such casing having a recess; of the shank member having a rack-face; a toothed bar movable sidewise in the slotWay of the casing, said bar having one or more recesses; one or more loclvballs movably held in the casing and adapted to move into the recesses of the lock-bar and holding such bar from vertical movement, and to move into the recesses of the rotary lock-bolt when such bolt is adj usted to receive it, said casing and shank member being arranged for vertical adjustment relative to each other, substantially as shown and for the purposes deseribed.

3. As an improvement in Wrenches; in combination; a toothed shank; a sliding-jaw casing'having slotways separated by a divisionwall, said Wall having an opening; a toothed lock-bar adapted to be engaged with the toothed shank and being movable in one of the slotways of the sliding-jaw casing, said bar having a recess; a' rotary bolt operating in the other slotwayof the sliding-jaw casing and having a recess; and a ball H, all heilig arranged substantially as shown and for the purposes described.

JOSEPH. Il. IIANSON.

Vitnesses:

S. T. HANDY, JOHN TROMBLA'Y. 

